參數(shù)資料
型號: XRT86VL3x
廠商: Exar Corporation
元件分類: 通信及網(wǎng)絡
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù): 124/153頁
文件大?。?/td> 1316K
代理商: XRT86VL3X
XRT86VL3X
117
T1/E1/J1 FRAMER/LIU COMBO - ARCHITECTURE DESCRIPTION
REV. 1.2.2
10.3
The DS1 Framing Structure
A single T1 frame is 193 bits long and is transmitted at a frame rate of 8000Hz. This results in an aggregate bit
rate of 1.544 Mbit/s. Basic frames are divided into 24 timeslots numbered 1 thru 24 and a framing bit as shown
in
Figure 106
. Each timeslot is 8 bits in length and is transmitted most significant bit first, numbered bit 0. This
results in a single timeslot data rate of 8 bits x 8000/sec = 64 kbit/s.
F
IGURE
106. T1 F
RAME
F
ORMAT
DS1 Frame
Bit
0
0
Bit
1
1
Bit
2
2
Bit
3
3
Bit
4
4
Bit
5
5
Bit
6
6
Bit
7
7
F-bit
Timeslot
1
Timeslot
2 - 23
Timeslot
24
Timeslot
23
125
μ
s
相關(guān)PDF資料
PDF描述
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